#536FD7
Closest named color: Royal Blue (#4169E1). oklch(57.4% 0.162 269.4), rgb(83, 111, 215).
Aa
Black text reads best on this color (4.62:1).
About this color
#536FD7 is a medium-dark, vivid blue. In OKLCH its lightness is 57%, its chroma 0.162 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.031 away. Black text reads best on it, at 4.62:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.62:1 |
| White text | 4.54:1 |
Values
| HEX | #536FD7 |
| RGB | rgb(83, 111, 215) |
| HSL | hsl(227, 62%, 58%) |
| OKLCH | oklch(57.4% 0.162 269.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #536FD7 | 4.54:1 | AA | Lc -76.7 | Fine for body text |
| Black text on #536FD7 | 4.62:1 | AA | Lc 32.8 | Non-text elements, placeholder text |
| #536FD7 text on white | 4.54:1 | AA | Lc 71.3 | Content text, not long reading |
| #536FD7 text on black | 4.62:1 | AA | Lc -30.4 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED9F5
oklch(88.6% 0.04 268.5)
-
Step 300
300
#AEBFF1
oklch(80.9% 0.073 270.1)
-
Step 400
400
#839DEA
oklch(70.8% 0.117 269.1)
-
Step 500
500
#6682E3
oklch(63.1% 0.149 269.6)
-
Step 600
600 (this color)
#536FD7
oklch(57.4% 0.162 269.4)
-
Step 700
700
#3F57B5
oklch(49% 0.151 269.3)
-
Step 800
800
#344892
oklch(42.7% 0.124 269.2)
-
Step 900
900
#2D3D75
oklch(37.7% 0.098 269.3)
-
Step 950
950
#1A2444
oklch(26.9% 0.061 268.9)
#536FD7 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #397CDB | 0.038 |
| Deuteranopia (no green cones) | #1F70D5 | 0.043 |
| Tritanopia (no blue cones) | #008799 | 0.139 |
| Achromatopsia (no color) | #767676 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #536FD7
#536FD7
oklch(57.4% 0.162 269.4)
- #947400
#947400
oklch(57.4% 0.117 89.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #536FD7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.031
- Dark Periwinkle #665FD1 ΔE 0.043
- Windows Blue #3778BF ΔE 0.054
- Neon Blue #4361EE ΔE 0.055
- Slate Blue #6A5ACD ΔE 0.056
- Light Indigo #6D5ACF ΔE 0.058
- Cerulean Blue #056EEE ΔE 0.060
- Warm Blue #4B57DB ΔE 0.061
Use #536FD7 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.